Cited by 104Speech Recognition and SynthesisSpeech and dialogue systemsSpeech and Audio Processing

Joint Speech Recognition and Speaker Diarization via Sequence Transduction

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Shafey, Laurent El, Soltau, Hagen, Shafran, Izhak·2019·Interspeech 2019

Abstract

Speech applications dealing with conversations require not only recognizing the spoken words, but also determining who spoke when. The task of assigning words to speakers is typically addressed by merging the outputs of two separate systems, namely, an automatic speech recognition (ASR) system and a speaker diarization (SD) system. The two systems are trained independently with different objective functions. Often the SD systems operate directly on the acoustics and are not constrained to respect word boundaries and this deficiency is overcome in an ad hoc manner. Motivated by recent advances in sequence to sequence learning, we propose a novel approach to tackle the two tasks by a joint ASR and SD system using a recurrent neural network transducer. Our approach utilizes both linguistic and acoustic cues to infer speaker roles, as opposed to typical SD systems, which only use acoustic cues. We evaluated the performance of our approach on a large corpus of medical conversations between physicians and patients. Compared to a competitive conventional baseline, our approach improves word-level diarization error rate from 15.8% to 2.2%.

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Authors
Shafey, L. E., Soltau, H., & Shafran, I.
Affiliations
Google (United States) (US)
Venue
Interspeech 2019
Publisher
ISCA
Published
2019-09-15
Pages
396-400
ISSN
2308-457X (ISSN-L)
OpenAlex
W2957946919
Cited by
104
References
30
Citations by year
2026: 9 · 2025: 8 · 2024: 14 · 2023: 5 · 2022: 21 · 2021: 29 · 2020: 16 · 2019: 2
FWCI
6.50
Type
conference paper
Language
en
Open access
Locations
  • Interspeech (USB) (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Speech Recognition and Synthesis
  • Physical Sciences › Computer Science › Artificial Intelligence › Speech and dialogue systems
  • Physical Sciences › Computer Science › Signal Processing › Speech and Audio Processing
Keywords
speaker diarization, speech recognition, RNN-T, medical conversation, physician-patient interaction

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